Comb-head.



l. B. HUBBARD & C. E. WILLIAMS.

COMB HEAD.

APPLICATION FILED JAN-2,1914.

1 165, 177. Patented Dec. 21, 1915.

a Mv-wey:

is a sectional view of the ful Comb-Headfof which B'. HUBBARD AND CHESTER E. WILLIAMS, 0F WORCESTER, .MASSACI-IUSETTS.

cor/rennin).

1,1 5,177; Specificationo hpplication filed. January '10' all'whovnitmayconcern; I Beit known that we, IRA HUBBARD. and CHESTER E. WVILLrAMs, citizens of the United States, both residlng at Worcester, in the Q county 0 Worcester and Statexof Massachusetts, have invented a new and usea specificati'onQ V I This invention relates to'a headfor 'doifer combs and the principal bjects thereof are to provide simple and inexpensive improvements in the mechanism for connecting. the crank spindle with the comb shaft whereby the same can be very materially speeded up; to provide a construction of these parts that will permit of the use of ball bearings for the purpose of permitting the increase of speed and to get all the ball bearing parts in one piece; that they can be made of'steel and Wlll have no angles "or projections that will render x them easily breakable in ordinary practice.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Figure 1 is a plan of the bottom halfof a comb head with the parts constructed in accordance withthis invention and certain of said parts shown in section on the plane of the top of the comb head casting; Fig. 2 same on the line 2-2 of Fig. 1; Fig. 3 is a similar view with the arm stud also insection; Fig. 4 is a central longitudinal sectional view of the link with its parts separated therefrom and shown partly in elevation; and Fig. 5 is an elevation of the driving shaft.

The invention is shown as applied to a doffer comb head comprising a main casting 10, a crank spindle or driving shaft 11 driven by a pulley 12 thereon, and a comb shaft 13 connected with a vibrating shaft 14. Asordinarily constructed the shafts 11 and let are connected by two members, a link eccentrically connected with the shaft 11 and an arm fixed to the shaft 1 1 are pivoted to the link.

end transverse to the main body of the link or arm.

The arm has always been made as a casting and the link has in recent years been made of steel. It has not been practical to make the arm of steel, and consequently, it will be seen that this arm has necessarily the following is and to so arrange the parts These two parts have been made heretofore each with a projection at each f t fitent I Patented Dec. 21, 1915.

2, 1914. Serial No. 809,879.

been made quite heavy in order to provide 7 a structure strong enough to withstand the very high rate'of vibration. It has been made larger than would have been necessary if it did not have the two hollow'projections at its ends connected by a comparatively thin but wide body. nesses at'the angles between the body and vtheprojections and these weaknesses had to be compensated for' by making the device comparatively large. It has been found in practice that this p'artbreaks frequently and not'only necessitates expense for repairs but necessitates the stopping of the machine for considerable periods of time. also occasionally breaks with similar results. According to this'invention ball bearings are arranged in these parts in such a way that the ball'bearings' will all be located on one part, which in itself can be made of a fiat piece of steel without the" projections ref'erred t0 and the other one of these two pieces can also be simplified to such an extent that it can be made of steel. In this way we find that the speed can be very materially increased thus adding a very high percentage to the amount of production and yet the changes made are in the direction of simplicity, and breakage is reduced. Moreover generally if anything breaks it is a comparatively simple part that is easily and quickly replaced.

Referring now to the drawings again it will be seen that the crank spindle 11 is provided on the end with an eccentric projecting crank 15. The link 16 which takes the place of the old link is a fiat member having no material projections and easily made of steel. This member is provided with two recesses 17 therein each one adapted to receive a ball retainer 18 which fits up against a ridge 19 on one side of the link. The ball retainers are held in position by a plate 20 which is screwed or otherwise fixed to the link, and has opposite pairs of arms partly encircling; the ball retainers and holding them in position. The crank stud 15 enters one of the ball retainers and the other one receives a stud 22 which is fixed in a steel arm 23 which is fixed to the shaft 14: by a screw 24 or in any other desired way. The provision, however, of the steel link 16 with the ball bearings arranged therein in the simple manner set forth results in a great reduction in the amount of wear and permits of a much simpler arrangement for the arm The steel link tion, We are aware in thecl aims, ;belimited ito creased duties.

Although We have *illustrated and de scribed a specifioembodiment of' th'e' inven of thexfact that many modifications can be made therein 'byany one skilled ,in the art without departing from thescope of the invention as expressed therefore, We do notzfwish to.

all the'details of construction herein shown and described;;but

' the combination ,Withfalcrank spindleand a Q tlierethrough at opposite en ds, I

one opening for .rece1 1ngsa1d crank p n and a seoondbearlng-in .the:.other open ng, a

comb shaft parallel "therewith; of .a 'proj ecting eccentric crank pin on the end of said crank-spindle, a flat link ha'ying no project ing, parts but Pl'OVidGClWlthgtWO openings a b i g n steelsarmpfixed iYith respect to :the comb sha t and-a t moii e i n ai a ma passing into the second bearing.

In 117a delvice for operating a i ibrating 3,

, site, ends,

p r'ating' (1on1: K 6 10 taint, the ambit-month flatlink having no projecting parts but provided withtwo iopeningsgtherefrom at opposite ends, a bearmg 1n one opening for securing a crank pin, 7

* a second bearing in said opening, a steel arm and a stud mounted on ing into the second bearing. 7

said arm and pass- 3. In aldeyice for operating'an oscillating and a shaft, of ,alink for'transrnitting the rotation of'r-the spindleand the shaft ia's a vVibration, said link consisting of a 'fiat'piece of steelhaving' recesses therein at its oppoa ,ballretainer'in each recess; a. plateseoured tothellink fbet'weefnflsaid re-' cesses and having armsprojecting oppositely over the edges projections on said spindles and-'shaftsen tering saidball retainers.

In1testimony-whereof Wehavehereuntof I set ourhands, "in thefpresence of two subscribing Witnesses, n I

IRA 'B. HUBBARD. i

CHEST ER E. WILLIAMS Witnesses: Y

' i IYALVBERVT E. gFAY,

;' CIFonnns r WnssoN.

pqpi esfbf oniisj at ntfnri be b taml 'm five cents aeh, by addressing the Commissioner of Patents,

'washi toggn' o.

of said ball retainers and comb, the combination with a crank spindle; 

